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Articles 2551 - 2580 of 7399
Full-Text Articles in Cell and Developmental Biology
Tissue-Resident Myeloid-Derived Suppressor Cells Modulate Immune Homeostasis In Healthy Adipose., Katlin Brooke Stivers
Tissue-Resident Myeloid-Derived Suppressor Cells Modulate Immune Homeostasis In Healthy Adipose., Katlin Brooke Stivers
Electronic Theses and Dissertations
Our goal with this study was to gain insight into the homeostatic immune cell network in healthy adipose tissue. Specifically, we sought to determine if the immature myeloid cells found in healthy and inflamed adipose were, in fact, tissue-resident myeloid-derived suppressor cells (MDSCs). Using various in vitro and in vivo methods, we have uncovered a population of CD11bHi Ly6CHi Ly6G- MDSCs resident in healthy adipose tissue. To the best of our knowledge this is the first time that these cells have been investigated and described in healthy adipose tissue. Systemic MDSC depletion lead to the accumulation of …
Longitudinal Clonal Lineage Dynamics And Functional Characterization Of Pancreatic Cancer Chemo-Resistance And Metastasization, Chieh-Yuan Li
Longitudinal Clonal Lineage Dynamics And Functional Characterization Of Pancreatic Cancer Chemo-Resistance And Metastasization, Chieh-Yuan Li
Dissertations and Theses (Open Access)
In recent years, technological advancements, such as next-generation sequencing and single-cell interrogation techniques, have enriched our understanding in tumor heterogeneity. By dissecting tumors and characterizing clonal lineages, we are better understanding the intricacies of tumor evolution. Tumors are represented by the presence of and dynamic interactions amongst clonal lineages. Each lineage and each cell contributes to tumor dynamics through intrinsic and extrinsic mechanisms, and the variable responses of clones to perturbations in the environment, especially therapeutics, underlie disease progression and relapse. Thus, there exists a pressing need to understand the molecular mechanisms that determine the functional heterogeneity of tumor sub-clones …
Non-Invasive Tests For The Detection Of Nasopharyngeal Carcinoma, Mohan Sivanesan Vijaya
Non-Invasive Tests For The Detection Of Nasopharyngeal Carcinoma, Mohan Sivanesan Vijaya
Student Works (2020-2029)
Nasopharyngeal carcinoma (NPC) is a malignancy that arises in the epithelium of the nasopharynx. Diagnosis is often delayed due to inaccessibility of primary tumour site which leads to inaccurate biopsy. The pathogenesis of NPC is linked to the Epstein-Barr virus (EBV) and studies have shown the employability of plasma EBV DNA for the detection and monitoring of NPC. MicroRNAs (miRNA) are a class of small non-coding RNA that are dysregulated in various cancers and have been extensively studied as biomarker due to their stability in various biospecimens. The aim of this project is to evaluate the load of EBV DNA …
Differentiation Propensity, Safety, And Therapeutic Potential Of Mesenchymal Stem Cells Of Dental Origin, Musa Sabri
Differentiation Propensity, Safety, And Therapeutic Potential Of Mesenchymal Stem Cells Of Dental Origin, Musa Sabri
Student Works (2020-2029)
Introduction: A new area in medical research has emerged with the discovery of mesenchymal stem cells (MSCs) and their ability to differentiate into other cell types. Specifically, these cells are found in various tissues and have been utilized in the field of regenerative medicine to support tissue repair as well as in cell replacement. Lately, MSCs of dental origin have been the main players used for regenerative purposes although subtle differences based on their tissue source separate them. Objectives: This study aims to determine the differential propensity, safety, and potential therapeutic applications of dental-derived MSCs. This involves examining various aspects …
Artificial Intron Technology To Generate Conditional Knock-Out Mice, Amber N. Thomas-Gordon
Artificial Intron Technology To Generate Conditional Knock-Out Mice, Amber N. Thomas-Gordon
Dissertations and Theses (Open Access)
Genetic engineering has been re-shaped by the invention of new tools in modern biotechnology in a way that offers precision and efficiency in modifying the genome at a single nucleotide level and/or allowing precise control of gene expression. Such gene manipulation brings about significant findings and revelations in comprehending more about embryonic development, cellular and physiological functions, and disease pathology. Current methods used to produce conditional knockouts have limitations on conditional allele placement and modification varies among genes in different organisms. Thus, a system for generating conditional alleles with fidelity remains a challenge. My goal was to examine an approach …
Investigating Chitosan Modified With Triethylammonium Butanamide And Triethylphosphonium Butanamide As Non-Viral Gene Delivery Vectors By Examining Cytotoxicity And Transfection Efficiency, Deborah C. Ehie
Graduate Theses/Dissertations
Gene therapy is a very challenging field, especially with new emerging genetic disorders. Chitosan (CS), due to chitosan’s flexibility, biocompatibility, and biodegradability, has been of interest in the world of gene therapy especially as researchers are gravitating towards non-viral vectors due to the problems caused by viral vectors. Nevertheless, there are still issues regarding solubility, cellular uptake of cargos being transported in vitro or in vivo, increased cytotoxicity levels, as well as many other things that prevent chitosan from being an efficient gene delivery agent. Here I present five derivatives of chitosan, which were all modified with either triethylphosphonium …
The Investigation Of Group 1 Late Embryogenesis Abundant Protein 6 And Its Role In Arabidopsis Thaliana Desiccation Tolerance, Joann Eise Thomson
The Investigation Of Group 1 Late Embryogenesis Abundant Protein 6 And Its Role In Arabidopsis Thaliana Desiccation Tolerance, Joann Eise Thomson
Masters Theses
Like most seeds, Arabidopsis thaliana seed development is divided into three major phases: morphogenesis, storage deposition, and maturation drying. During maturation drying the seed becomes desiccation tolerant (DT) at some point and the seed rapidly loses water until its moisture level is approximately 10% on a fresh weight basis. The ability of the seeds to withstand this extreme water loss is hypothesized to be due, in part, to the accumulation of late embryogenesis abundant (LEA) proteins. In A. thaliana, there are 51 LEA proteins which are divided into seven groups based on amino acid sequence similarities. Group 1 LEA …
Putative Roles Of Cd200 In The Leukemogenesis And Immune Evasion Of Leukemia Stem Cells, Shelley Herbrich
Putative Roles Of Cd200 In The Leukemogenesis And Immune Evasion Of Leukemia Stem Cells, Shelley Herbrich
Dissertations and Theses (Open Access)
Acute myeloid leukemia (AML) stem cells (LSC) are capable of surviving current standard chemotherapy and are the likely source of deadly, relapsed disease. While stem cell transplant serves as proof-of-principle that AML LSCs can be eliminated by the immune system, the translation of existing immunotherapies to AML have been met with limited success. Consequently, understanding and exploiting the unique immune mechanisms of AML LSCs is critical. To identify novel immunotherapeutic targets, we sourced multiple large, publicly available datasets and identified CD200 as a potential stem-cell specific immune checkpoint in AML. We hypothesized that CD200 was a stem-cell specific mechanism of …
Aging, Gait Variability, And Adaptability, Collin Douglas Bowersock
Aging, Gait Variability, And Adaptability, Collin Douglas Bowersock
Health Services Research Dissertations
The purpose of this work was to study the relationships between age, measures of gait variability, and locomotor adaptability. Measures of gait variability are used to identify maladapted locomotor behavior, motor disease, and risk of falls. The first aim was to determine the relationships between age and measures of gait variability. Thirty-four participants (23-71 years old) walked on a treadmill for 6 minutes at their preferred speed. Variability of stride times and lengths was computed via linear measures (standard deviation and coefficient of variation) and nonlinear measures (sample entropy and detrended fluctuation analysis). Movement trajectory variability of the dominant knee …
Using Novel Mouse Knockout Models To Study The Roles Of Asm (Acid Sphingomyelinase) In The Regulation Of Multiple Stem Cell Compartments In Vivo, Amro Abdalla
UNLV Theses, Dissertations, Professional Papers, and Capstones
Acid Sphingomyelinase (ASM) is a lipid-modifying enzyme that breaks down sphingomyelin lipids into ceramide and phosphorylcholine. Genetic mutations in the human ASM gene leads to Niemann pick diseases (NPD) type A & B. In NPD type A, patients die between 1-2 years old due to severe neurological complications, while NPD type B patients live to adulthood but suffer from severe visceral organ complications. Type A is usually associated with complete inactivation of the ASM gene. The hallmark of NPD is Purkinje neuron (PN) death. PNs, the major neurons in the cerebellum part of the brain, regulate the balance and fine …
The Role Of Homologous Cyclin B’S In The Cell Cycle And, In Their Absence, The Effect On Zebrafish Early Development, Tetiana Petrachkova
The Role Of Homologous Cyclin B’S In The Cell Cycle And, In Their Absence, The Effect On Zebrafish Early Development, Tetiana Petrachkova
Dissertations
Regulation of cell division is essential for normal embryo development. The Cyclins and their Cyclin-dependent kinases are key regulators controlling this process. In this thesis, I examine the role of cyclin B1 and cyclin B2 in zebrafish development. It is thought that both Cyclins are necessary for a cell to progress past the G2/M checkpoint into mitosis. First, I show that zygotic Cyclin B1 is essential for normal cell cycle progression, but not for cells to enter mitosis. Lack of zygotic Cyclin B1 in the early arrest mutant specter, which carries a nonsense mutation in the cyclin B1 gene, …
Comparative Analysis Of Small Non-Coding Rna And Messenger Rna Expression In Somatic Cell Nuclear Transfer And In Vitro-Fertilized Bovine Embryos During Early Development Through The Maternal-To-Embryonic Transition, Jocelyn Marie Cuthbert
Comparative Analysis Of Small Non-Coding Rna And Messenger Rna Expression In Somatic Cell Nuclear Transfer And In Vitro-Fertilized Bovine Embryos During Early Development Through The Maternal-To-Embryonic Transition, Jocelyn Marie Cuthbert
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Cloning animals using somatic cell nuclear transfer (scNT) was first successfully demonstrated with the birth of Dolly the sheep, but the process of cloning remains highly inefficient. By improving our understanding of the errors that may occur during cloned cattle embryo development, we could obtain a greater understanding of how specific molecular events contribute to successful development. The central dogma of biology refers to the process of DNA being transcribed into messenger RNA (mRNA) and the translation of mRNA into proteins, which ultimately carry out the functions encoded by genes. The epigenetic code is defined as the array of chemical …
Uplc-Ms/Ms Analysis Of Cyp1a-Mediated Ethoxyresorufin-O-Deethylation Activity In The Rat Kidney Microsomes, Devaraj Venkatapura Chandrashekar, Reza Mehvar
Uplc-Ms/Ms Analysis Of Cyp1a-Mediated Ethoxyresorufin-O-Deethylation Activity In The Rat Kidney Microsomes, Devaraj Venkatapura Chandrashekar, Reza Mehvar
Pharmacy Faculty Articles and Research
Ethoxyresorufin (ER)-O-deethylation (EROD) activity has been widely used to assess cytochrome P450 1A (CYP1A) activity. The kinetics of CYP1A activity have been well characterized in the liver microsomes. However, studies in kidney microsomes are limited due to the much lower EROD activity in this organ. Here, we developed and validated a sensitive UPLC-MS/MS assay for the characterization of the EROD activity in the rat kidney microsomes. In a 50 µL reaction mixture, rat kidney microsomes (0.25 mg/mL) were incubated with ER (0.1–5 µM) and NADPH (1 mM) for 10 min. Acidic solvents, such as trichloroacetic acid or formic …
Inhibition Of Hdac1/2 Along With Trap1 Causes Synthetic Lethality In Glioblastoma Model Systems, Trang T. T. Nguyen, Yiru Zhang, Enyuan Shang, Chang Shu, Catarina M. Quinzii, Mike-Andrew Westhoff, Georg Karpel-Massler, Markus D. Siegelin
Inhibition Of Hdac1/2 Along With Trap1 Causes Synthetic Lethality In Glioblastoma Model Systems, Trang T. T. Nguyen, Yiru Zhang, Enyuan Shang, Chang Shu, Catarina M. Quinzii, Mike-Andrew Westhoff, Georg Karpel-Massler, Markus D. Siegelin
Publications and Research
The heterogeneity of glioblastomas, the most common primary malignant brain tumor, remains a significant challenge for the treatment of these devastating tumors. Therefore, novel combination treatments are warranted. Here, we showed that the combined inhibition of TRAP1 by gamitrinib and histone deacetylases (HDAC1/HDAC2) through romidepsin or panobinostat caused synergistic growth reduction of established and patient-derived xenograft (PDX) glioblastoma cells. This was accompanied by enhanced cell death with features of apoptosis and activation of caspases. The combination treatment modulated the levels of pro- and anti-apoptotic Bcl-2 family members, including BIM and Noxa, Mcl-1, Bcl-2 and Bcl-xL. Silencing of Noxa, BAK and …
Allosteric Regulation At The Crossroads Of New Technologies: Multiscale Modeling, Networks, And Machine Learning, Gennady M. Verkhivker, Steve Agajanian, Guang Hu, Peng Tao
Allosteric Regulation At The Crossroads Of New Technologies: Multiscale Modeling, Networks, And Machine Learning, Gennady M. Verkhivker, Steve Agajanian, Guang Hu, Peng Tao
Mathematics, Physics, and Computer Science Faculty Articles and Research
Allosteric regulation is a common mechanism employed by complex biomolecular systems for regulation of activity and adaptability in the cellular environment, serving as an effective molecular tool for cellular communication. As an intrinsic but elusive property, allostery is a ubiquitous phenomenon where binding or disturbing of a distal site in a protein can functionally control its activity and is considered as the “second secret of life.” The fundamental biological importance and complexity of these processes require a multi-faceted platform of synergistically integrated approaches for prediction and characterization of allosteric functional states, atomistic reconstruction of allosteric regulatory mechanisms and discovery of …
A Prospective Study To Validate The Functional Assessment Of Cancer Therapy (Fact) For Epidermal Growth Factor Receptor Inhibitor (Egfri)-Induced Dermatologic Toxicities Fact-Egfri 18 Questionnaire: Swog S1013, Siu Fun Wong, Joseph M. Unger, James L. Wade Iii, Lynne I. Wagner, Mario E. Lacouture, Keisha C. Humphries, Anna Moseley, Kathryn Arnold, Mario R. Velasco Jr., Justin D. Floyd, Benjamin T. Esparaz, Afsaneh Barzi, Heinz-Josef Lenz, Marianna Koczywas, Shaker Dakhil, Gary V. Burton, Michael J. Fisch, N. Lynn Henry, Dawn L. Hershman, Carol M. Moinpour
A Prospective Study To Validate The Functional Assessment Of Cancer Therapy (Fact) For Epidermal Growth Factor Receptor Inhibitor (Egfri)-Induced Dermatologic Toxicities Fact-Egfri 18 Questionnaire: Swog S1013, Siu Fun Wong, Joseph M. Unger, James L. Wade Iii, Lynne I. Wagner, Mario E. Lacouture, Keisha C. Humphries, Anna Moseley, Kathryn Arnold, Mario R. Velasco Jr., Justin D. Floyd, Benjamin T. Esparaz, Afsaneh Barzi, Heinz-Josef Lenz, Marianna Koczywas, Shaker Dakhil, Gary V. Burton, Michael J. Fisch, N. Lynn Henry, Dawn L. Hershman, Carol M. Moinpour
Pharmacy Faculty Articles and Research
Background
Papulopustular rash is a common class effect of epidermal growth factor receptor inhibitors (EGFRI) that can affect patients’ health-related quality of life and cause disruptions to treatment. SWOG S1013 (NCT01416688) is a multi-center study designed to validate the Functional Assessment of Cancer Therapy EGFRI 18 (FACT-EGFRI 18) using 7-items from the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0 to assess EGFRI-induced skin-related toxicities and their impact on functional status.
Methods
Patients with a diagnosis of colorectal or lung cancer to receive EGFRI therapies for at least 6 weeks were enrolled. Patient self-assessments using …
Cellular Dynamics Of Double Fertilization And Early Embryogenesis In Flowering Plants, Ji Min Shin, Ling Yuan, Masaru Ohme-Takagi, Tomokazu Kawashima
Cellular Dynamics Of Double Fertilization And Early Embryogenesis In Flowering Plants, Ji Min Shin, Ling Yuan, Masaru Ohme-Takagi, Tomokazu Kawashima
Plant and Soil Sciences Faculty Publications
Flowering plants (angiosperms) perform a unique double fertilization in which two sperm cells fuse with two female gamete cells in the embryo sac to develop a seed. Furthermore, during land plant evolution, the mode of sexual reproduction has been modified dramatically from motile sperm in the early-diverging land plants, such as mosses and ferns as well as some gymnosperms (Ginkgo and cycads) to nonmotile sperm that are delivered to female gametes by the pollen tube in flowering plants. Recent studies have revealed the cellular dynamics and molecular mechanisms for the complex series of double fertilization processes and elucidated differences …
Insulin-Like Growth Factor 2 Mrna-Binding Protein 3 Modulates Aggressiveness Of Ewing Sarcoma By Regulating The Cd164-Cxcr4 Axis, Caterina Mancarella, Giulia Caldoni, Irene Ribolsi, Alessandro Parra, Maria Cristina Manara, Arthur M Mercurio, Andrea Morrione, Katia Scotlandi
Insulin-Like Growth Factor 2 Mrna-Binding Protein 3 Modulates Aggressiveness Of Ewing Sarcoma By Regulating The Cd164-Cxcr4 Axis, Caterina Mancarella, Giulia Caldoni, Irene Ribolsi, Alessandro Parra, Maria Cristina Manara, Arthur M Mercurio, Andrea Morrione, Katia Scotlandi
Department of Pathology, Anatomy, and Cell Biology Faculty Papers
Ewing sarcoma (EWS) is the second most common bone and soft tissue-associated malignancy in children and young adults. It is driven by the fusion oncogene EWS/FLI1 and characterized by rapid growth and early metastasis. We have previously discovered that the mRNA binding protein IGF2BP3 constitutes an important biomarker for EWS as high expression of IGF2BP3 in primary tumors predicts poor prognosis of EWS patients. We additionally demonstrated that IGF2BP3 enhances anchorage-independent growth and migration of EWS cells suggesting that IGF2BP3 might work as molecular driver and predictor of EWS progression. The aim of this study was to further define the …
Consideration Of Pannexin 1 Channels In Covid-19 Pathology And Treatment, Leigh Anne Swayne, Scott R. Johnstone, Chen Seng Ng, Juan C. Sanchez-Arias, Miranda E. Good, Silvia Penuela, Alexander W. Lohman, Abigail G. Wolpe, Victor E. Laubach, X. Michael Koval, Brant E. Isakson
Consideration Of Pannexin 1 Channels In Covid-19 Pathology And Treatment, Leigh Anne Swayne, Scott R. Johnstone, Chen Seng Ng, Juan C. Sanchez-Arias, Miranda E. Good, Silvia Penuela, Alexander W. Lohman, Abigail G. Wolpe, Victor E. Laubach, X. Michael Koval, Brant E. Isakson
Anatomy and Cell Biology Publications
Copyright © 2020 the American Physiological Society Pannexin 1 (PANX1) is a ubiquitously expressed, channel-forming protein found in a number of tissues throughout the body (e.g., lung, vasculature, liver, central nervous system, immune system) that is important in many key physiological and immune responses (18, 55). PANX1 channels passively flux ATP (predominantly), multiple metabolites, and likely other small anions (37, 39). PANX1 channels regulate inflammation and host responses to several pathogens, including viruses (36, 42, 53). While there is currently no evidence suggesting novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and PANX1 directly interact, there is an urgent need …
Dissecting The Cellular Control Of Septin Organization In A Global Cereal Killer, Nawaraj Dulal
Dissecting The Cellular Control Of Septin Organization In A Global Cereal Killer, Nawaraj Dulal
Graduate Theses and Dissertations
Rice blast disease, caused by the filamentous fungus Magnaporthe oryzae, destroys sufficient rice each year to feed 60 million people, and is a serious threat to global food security. A wheat-adapted lineage of M. oryzae now poses threat to global wheat production. Rice blast disease is currently controlled using limited fungicides, and the emergence of fungicide resistance within M. oryzae populations is a growing concern. There is a pressing need to identify new classes of fungicides to control the disease, which requires better understanding of the basic biology of the pathogen. To establish disease, M. oryzae forms a specialized dome …
Secretion Of Proteins And Antibody Fragments From Transiently Transfected Endothelial Progenitor Cells, Loree Heller, Reynald Thinard, Melanie Chevalier, Sezgi Arpag, Yu Jing, Ruth Greferath, Richard Heller, Claude Nicolau
Secretion Of Proteins And Antibody Fragments From Transiently Transfected Endothelial Progenitor Cells, Loree Heller, Reynald Thinard, Melanie Chevalier, Sezgi Arpag, Yu Jing, Ruth Greferath, Richard Heller, Claude Nicolau
Bioelectrics Publications
In neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, multiple sclerosis and amyotrophic lateral sclerosis, neuroinflammation can lead to blood-brain barrier (BBB) breakdown. After intravenous or intra-arterial injection into mice, endothelial progenitor cells (EPCs) home to the damaged BBB to promote neurovascular repair. Autologous EPCs transfected to express specific therapeutic proteins offer an innovative therapeutic option. Here, we demonstrate that EPC transfection by electroporation with plasmids encoding the reporter protein GFP or an anti-beta-amyloid antibody fragment (Fab) leads to secretion of each protein. We also demonstrate the secreted anti-beta-amyloid Fab protein functions in beta-amyloid aggregate solubilization.
Epstein Barr Virus-Immortalizedblymphocytes Exacerbate Experimental Autoimmune Encephalomyelitis In Xenograft Mice, Pascal Polepole, Alison Bartenslager, Yutong Liu, Thomas M. Petro, Samodha C. Fernando, Luwen Zhang
Epstein Barr Virus-Immortalizedblymphocytes Exacerbate Experimental Autoimmune Encephalomyelitis In Xenograft Mice, Pascal Polepole, Alison Bartenslager, Yutong Liu, Thomas M. Petro, Samodha C. Fernando, Luwen Zhang
Nebraska Center for Virology: Faculty Publications
Multiple sclerosis (MS) is the most common autoimmune disorder affecting the central nervous system. Epstein-Barr virus (EBV) is a causative agent for infectious mononucleosis (IM) that is associated with MS pathogenesis. However, the exact mechanism by which EBV, specifically in IM, increases the risk for MS remains unknown. EBV immortalizes primary B lymphocytes in vitro and causes excessive B lymphocyte proliferation in IM in vivo. In asymptomatic carriers, EBV-infected B lymphocytes still proliferate to certain degrees, the process of which is tightly controlled by the host immune systems. Experimental autoimmune encephalomyelitis (EAE) mimics key features of MS in humans …
Phenotypic Plasticity Of Japanese Medaka Gill In Response To Changing Salinities, Laura V. Ellis
Phenotypic Plasticity Of Japanese Medaka Gill In Response To Changing Salinities, Laura V. Ellis
Graduate Theses and Dissertations
Japanese medaka (Oryzais latipes) are euryhaline fish, meaning they are capable of surviving in a variety of salinities from fresh water to seawater. The ability to maintain an internal osmotic concentration stems from the phenotypic plasticity of the osmoregulatory organs, the gill, kidney, intestine, and integument. The gill is the main site of osmotic and ionic regulation in fish due to the three-dimensional structure, the direct contact with the outside environment, and the composition of the gill cells. Fish gills are multifunctional as they regulate water movement, acid/base exchange, nitrogenous waste excretion, and ion fluctuations. In freshwater environments, fish are …
Vesicular And Uncoated Rab1-Dependent Cargo Carriers Facilitate Er To Golgi Transport, Laura M. Westrate, Melissa J. Hoyer, Michael J. Nash, Gia K. Voeltz
Vesicular And Uncoated Rab1-Dependent Cargo Carriers Facilitate Er To Golgi Transport, Laura M. Westrate, Melissa J. Hoyer, Michael J. Nash, Gia K. Voeltz
University Faculty Publications and Creative Works
Secretory cargo is recognized, concentrated and trafficked from endoplasmic reticulum (ER) exit sites (ERES) to the Golgi. Cargo export from the ER begins when a series of highly conserved COPII coat proteins accumulate at the ER and regulate the formation of cargo-loaded COPII vesicles. In animal cells, capturing live de novo cargo trafficking past this point is challenging; it has been difficult to discriminate whether cargo is trafficked to the Golgi in a COPII-coated vesicle. Here, we describe a recently developed live-cell cargo export system that can be synchronously released from ERES to illustrate de novo trafficking in animal cells. …
Evaluating The Effects Of Fasting Conditions In Combination With Temozolomide For The Treatment Of Glioblastoma Multiforme, Joseph Duffy
Evaluating The Effects Of Fasting Conditions In Combination With Temozolomide For The Treatment Of Glioblastoma Multiforme, Joseph Duffy
All NMU Master's Theses
Glioblastoma multiforme (GBM) is the most aggressive and lethal form of adult brain cancer. The standard of care for GBM is maximal surgical resection followed by adjuvant treatment with the chemotherapeutic agent temozolomide (TMZ) and radiotherapy. O-6-methylguanine-DNA methyltransferase (MGMT) is a DNA repair protein involved in TMZ resistance. Known as the Warburg effect, cancer cells will preferentially oxidize glucose to lactate in glycolysis. This less effective pathway of energy production means cancer cells must uptake significantly greater amounts of glucose to sustain physiological needs. One method that directly targets the bioavailability of glucose is fasting. Among other adaptations, fasting lowers …
Inactivation Of Hippo And Cjun-N-Terminal Kinase (Jnk) Signaling Mitigate Fus Mediated Neurodegeneration In-Vivo, Ankita Sarkar, Abijeet Singh Mehta, Prajakta Deshpande, Madhuri Kango-Singh, Udai Bhan Pandey, Amit Singh
Inactivation Of Hippo And Cjun-N-Terminal Kinase (Jnk) Signaling Mitigate Fus Mediated Neurodegeneration In-Vivo, Ankita Sarkar, Abijeet Singh Mehta, Prajakta Deshpande, Madhuri Kango-Singh, Udai Bhan Pandey, Amit Singh
Biology Faculty Publications
Amyotrophic Lateral Sclerosis (ALS), a late-onset neurodegenerative disorder characterized by the loss of motor neurons in the central nervous system, has no known cure to-date. Disease causing mutations in human Fused in Sarcoma (FUS) leads to aggressive and juvenile onset of ALS. FUS is a well-conserved protein across different species, which plays a crucial role in regulating different aspects of RNA metabolism. Targeted misexpression of FUS in Drosophila model recapitulates several interesting phenotypes relevant to ALS including cytoplasmic mislocalization, defects at the neuromuscular junction and motor dysfunction. We screened for the genetic modifiers of human FUS-mediated neurodegenerative phenotype using molecularly …
Palbociclib Treatment Alters Nucleotide Biosynthesis And Glutamine Dependency In A549 Cells, Lindsey R. Conroy, Pawel Lorkiewicz, Liqing He, Xinmin Yin, Xiang Zhang, Shesh N. Rai, Brian F. Clem
Palbociclib Treatment Alters Nucleotide Biosynthesis And Glutamine Dependency In A549 Cells, Lindsey R. Conroy, Pawel Lorkiewicz, Liqing He, Xinmin Yin, Xiang Zhang, Shesh N. Rai, Brian F. Clem
Neuroscience Faculty Publications
Background
Aberrant activity of cell cycle proteins is one of the key somatic events in non-small cell lung cancer (NSCLC) pathogenesis. In most NSCLC cases, the retinoblastoma protein tumor suppressor (RB) becomes inactivated via constitutive phosphorylation by cyclin dependent kinase (CDK) 4/6, leading to uncontrolled cell proliferation. Palbociclib, a small molecule inhibitor of CDK4/6, has shown anti-tumor activity in vitro and in vivo, with recent studies demonstrating a functional role for palbociclib in reprogramming cellular metabolism. While palbociclib has shown efficacy in preclinical models of NSCLC, the metabolic consequences of CDK4/6 inhibition in this context are largely unknown.
Methods
In …
Bioavailability And Modes Of Action Of Novel Metal Based Phenanthroline Drugs, Tadhg O’Leary
Bioavailability And Modes Of Action Of Novel Metal Based Phenanthroline Drugs, Tadhg O’Leary
Doctoral
Metal-basedcompounds have been utilised as chemotherapeutic agents for the last four decades due to their well-documented and clinically relevant anti-tumour properties.Acquired resistance is a challenge for the clinical use of these compounds and there is a continuing need to search for potential new therapeutic agents. Herein, the potential of two metal-basedcompounds containing chelated1,10-phenanthroline (1,10-Phen), one manganese-based (CMPD 73)andonecopper-based (CMPD 74), to act as novel therapeutic agents is explored.CMPD 73 displayed high micromolar (IC50>100μM) cytotoxic properties againstvarious cell systems but interestingly displayed increased cytotoxicity against ovarian (A2780), lung (A549) and cisplatin resistant mesothelioma cells(IC5040-50μM). CMPD 74 was equally cytotoxic against …
Phenotypic Switching Of Bacterial Cells In Extreme Environments, Sudip Nepal
Phenotypic Switching Of Bacterial Cells In Extreme Environments, Sudip Nepal
Graduate Theses and Dissertations
A large number of terrestrial microbial lives thrive in extremes of environmental conditions, including extremes of pressure, temperature, salinity, pH, and a combination of them. For example, all the marine biomass thrive at high hydrostatic pressure depending on depth. The temperature in the ocean can be very high near the hydrothermal vents and salinity and pH depends on the composition of salt in the surrounding areas. On the surface, hot springs, lakes and geysers provide high temperature conditions, while many places are permafrost regions with subzero temperatures. There is an emerging body of work on the viability, genomics, and metagenomics …
Introducing An Indigenous Non-Toxigenic Aspergillus Flavus Strain Isolated From Iraqi Corn Grains As A Bio-Control Agent To Reduce Aflatoxin Contamination In Corn Grains, Ali Almatakeez
Graduate Theses and Dissertations
Mycotoxin contamination of cereal crops, such as maize and sorghum, is a global concern because of the potential health effects on humans and animals. Although substantial research has been conducting regarding mycotoxin prevention and mitigation, little information is available about the association of mycotoxin-producing fungi with corn and sorghum grain in Iraq. Identifying and refining indigenous atoxigenic strains to reduce mycotoxin contamination of maize and sorghum has the potential to enhance the nutritional value of these grains while reducing economic losses. However, to our knowledge, this tactic has not yet been adopted by agricultural authorities and farmers in Iraq. To …